Monday, 27 May 2013

Three Phase Input to Single Phase Output

Three Phase Input to Single Phase Output

We have three phase input and the voltages in the three input is not the same always. Sometimes, one or two or three phase will be off. I would like to connect the phase to output which lies within the range (110 - 290).
Below will be the example,
Phase 1 (290v), Phase 2 (245v), Phase 3 (190v)
I need to select Phase 1 in this case. Ampere rating would be 40A on the selected output.
Did searched in google for single device (circuit / IC) which can does this, not finding one. Any direction would be helpful.

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